Funny mistakes

[WhYdOyOuThInKtHaThApPeNeD]

My first time playing I thought if I upgrade Neatness to lvl.3 I'd get heaps of skill runes from destroying junk items. So I aimed for upping Neatness to lvl.3 as highest priority. Man what a waste! Now I know how it really works.

Not quite mistakes but curious:

After struggling against Uldara for a couple reloads trying to get a no-loss on hard/invincible I finally found a good strat and was just about to end it with no loss, only to have Windows suddenly shut the machine down to do a scheduled update. Didn't know it was set to do that.

Also I was surprised to see an Arch-Mage miss a crit shot with 96% chance.

[tetleytea]

Oh I know the ultimate dumb mistake:

You make it through all game only to lose because you told the big turtle you wanted Demenion to be king.

[KongMysen]

Going into battle with too many troops in a single stack causing instant defeat. (Flaming Eye is one round only)